Eintracht Frankfurt are going to be in for a battle just days before their clash with Rangers, according to Mainz scout Michael Thurk.
The derby between Eintracht and Mainz on Saturday may not be as consequential as usual with neither side left with much to play for.
12th-placed Frankfurt will also have one eye on the Europa League final with Gio van Bronckhorst 's team in Seville which comes just four days later.